FREE UK DELIVERY OVER £75
100% SECURE PAYMENT
National Sales 01206 867500
My Account
National Sales 01206 867500

Soakaway Crates

We sell Rainsmart soakaway crates available either fully assembled or flat packed to save valuable space on site. There is a wide variety of design options to suit all types of different site requirements. In addition to the Rainsmart system we also stock Aquavoid and Polypipe Polystorm Soakaway crate systems.

Building a Soakaway

Soakaways are used to dispose of rainwater on most projects, whether domestic or commercial. Historically, this would have been done by a deep hole being dug and then filled with rubble, broken bricks, blocks and hard core - environmentally this caused issues due to contamination and mechanically, there were also issues due to the gaps between the bricks and blocks filling up - water wouldn't actually soakaway. 

This led to the creation of soakaway crates. or cells as they are sometimes referred to. These are now the most commonly used method of building a soakaway for both domestic housing and commercial applications.

Rainsmart Soakaway Crate - Features & Benefits

We have a domestic Rainsmart Ellipse double crate which holds 234 litres of rainwater. Four of these double crates make up 1 cubic metre - which is the most popular size to specify. Vertical crush load on this system is 24.2 tonnes with an 18 tonne vertical crush load. 

Our commercial 65 Tonne Heavy crate holds 236 litres of rainwater. Again, four of these crates make up 1 cubic metre. The heavy crate has a vertical crush loading capacity of 65 tonners per square metre - making it the ideal system for load applications in new housing development, industrial and infrastructure projects.

Flat-Packed or Pre-Assembled

We offer both flat-packed and pre-assembled crates for our Rainsmart Ellipse and 65 Tonne Heavy creates. A standard 1 cubic metre soakaway set should take around 10 - 12 minutes to assemble. All you'll need is a rubber mallet which we supply as part of the kit. 

Flat-pack soakaways are slightly more cost effective as they are easier to handle and transport. This option is perfect on both large and small sites where space may be at a premium. 

Installation of Crates

As crates are modular, builders and architects can create soakaways in sizes to suit their need. Different shapes and designs such as around a corner or in a long and narrow gully can be created to help with tight spots. 

We also have shallow crate options available if you have a high water table or want to dig a shallow excavation.

The outward facing sides of all crates should be wrapped in a geotextile membrane, to stop soil from clogging up the crate.

We recommend that a pre-filter - such as a silt trap - is used in conjunction with a modular soakaway system. Emptying the filter on a regular basis will maintain the systems efficiency and increase its lifespan. 

Crates are lightweight and can be installed by unskilled labour if needed.

Connecting Your Soakaway Crates

Both our Rainsmart Ellipse and 65 Tonne Heavy soakaway crates have a pipe entry point where your 110mm or 160mm drainage pipe should enter the crate. The membrane should be peeled back and clamped around the point where the pipe enters. 

Find out more about installation in our guides and tips

Professional Building Supplies sells the Rainsmart system of soakaway crates. Available either fully assembled or flat packed to save valuable space on site, there is a wide variety of design options to suit all types of different site requirements. In addition to the Rainsmart system we also stock Aquavoid and Polypipe Polystorm Soakaway crate systems. Soakaway crates. or cells as they are sometimes referred to as, are now the most commonly used method of building a soakaway for both domestic housing and commercial applications. Read more about Soakaway Crates

Building a Soakaway

Soakaways are used to dispose of rainwater on most projects, whether domestic or commercial. Historically, this would have been done by a deep hole being dug and then filled with rubble, broken bricks, blocks and hard core - environmentally this caused issues due to contamination and mechanically, there were also issues due to the gaps between the bricks and blocks filling up - water wouldn't actually soakaway. 

This led to the creation of soakaway crates. or cells as they are sometimes referred to. These are now the most commonly used method of building a soakaway for both domestic housing and commercial applications.

Rainsmart Soakaway Crate - Features & Benefits

We have a domestic Rainsmart Ellipse double crate which holds 234 litres of rainwater. Four of these double crates make up 1 cubic metre - which is the most popular size to specify. Vertical crush load on this system is 24.2 tonnes with an 18 tonne vertical crush load. 

Our commercial 65 Tonne Heavy crate holds 236 litres of rainwater. Again, four of these crates make up 1 cubic metre. The heavy crate has a vertical crush loading capacity of 65 tonners per square metre -  making it the ideal system for load applications in new housing development, industrial and infrastructure projects.

Flat-Packed or Pre-Assembled

We offer both flat-packed and pre-assembled crates for our Rainsmart Ellipse and 65 Tonne Heavy creates. A standard 1 cubic metre soakaway set should take around 10 - 12 minutes to assemble. All you'll need is a rubber mallet which we supply as part of the kit. 

Flat-pack soakaways are slightly more cost effective as they are easier to handle and transport. This option is perfect on both large and small sites where space may be at a premium. 

Installation of Crates

As crates are modular, builders and architects can create soakaways in sizes to suit their need. Different shapes and designs such as around a corner or in a long and narrow gully can be created to help with tight spots. 

The outward facing sides of all crates should be wrapped in a geotextile membrane, to stop soil from clogging up the crate.

Crates are lightweight and can be installed by unskilled labour if needed.

Connecting Your Soakaway Crates

Both our Rainsmart Ellipse and 65 Tonne Heavy soakaway crates have a pipe entry point where your 110mm or 160mm drainage pipe should enter the crate. The membrane should be peeled back and clamped around the point where the pipe enters. 

Find out more about installation in our guides and tips

Hide details

Soakaway Set Rainsmart Ellipse 1 Cubic Metre Flat-Packed

Soakaway Set Rainsmart Ellipse 1 Cubic Metre Flat-Packed

Code: 90004M3F Size: 935 Litres Capacity Brand: Rainsmart

£131.20 ex.VAT
£160.00 Save 18%
£131.20 ex.VAT
£160.00 Save 18%

Soakaway Set Rainsmart Ellipse 1 Cubic Metre Assembled

Soakaway Set Rainsmart Ellipse 1 Cubic Metre Assembled

Code: 90004M3 Size: 935 Litres Capacity Brand: Rainsmart

£147.60 ex.VAT
£180.00 Save 18%
£147.60 ex.VAT
£180.00 Save 18%

Soakaway Crate Rainsmart Ellipse Flat-Packed

Soakaway Crate Rainsmart Ellipse Flat-Packed

Code: 90004F Size: 233.64 Litres Capacity Brand: Rainsmart

£34.44 ex.VAT
£42.00 Save 18%
£34.44 ex.VAT
£42.00 Save 18%

Soakaway Crate Rainsmart Ellipse Assembled

Soakaway Crate Rainsmart Ellipse Assembled

Code: 90004 Size: 233.64 Litres Capacity Brand: Rainsmart

£36.90 ex.VAT
£45.00 Save 18%
£36.90 ex.VAT
£45.00 Save 18%

Soakaway Set Rainsmart 1 Cubic Metre Flat-Packed + Silt Trap & Lid

Soakaway Set Rainsmart 1 Cubic Metre Flat-Packed + Silt Trap & Lid

Code: 90004M3FK Brand: Rainsmart

£332.10 ex.VAT
£405.00 Save 18%
£332.10 ex.VAT
£405.00 Save 18%

Soakaway Set Rainsmart 1 Cubic Metre Assembled + Silt Trap & Lid

Soakaway Set Rainsmart 1 Cubic Metre Assembled + Silt Trap & Lid

Code: 90004M3K Brand: Rainsmart

£356.70 ex.VAT
£435.00 Save 18%
£356.70 ex.VAT
£435.00 Save 18%

Soakaway Set Shallow 1 Cubic Metre Flat-Packed (Option 1)

Soakaway Set Shallow 1 Cubic Metre Flat-Packed (Option 1)

Code: 90003F Size: 955 Litres Brand: Rainsmart

£143.50 ex.VAT
£175.00 Save 18%
£143.50 ex.VAT
£175.00 Save 18%

Soakaway Set Shallow 1 Cubic Metre Flat-Packed (Option 2)

Soakaway Set Shallow 1 Cubic Metre Flat-Packed (Option 2)

Code: 90003FV2 Size: 955 Litres Brand: Rainsmart

£143.50 ex.VAT
£175.00 Save 18%
£143.50 ex.VAT
£175.00 Save 18%

Soakaway Crate (Heavy) Rainsmart 65T Flat-Packed

Soakaway Crate (Heavy) Rainsmart 65T Flat-Packed

Code: STM02DF Size: 236 Litres Capacity Brand: Rainsmart

£45.10 ex.VAT
£55.00 Save 18%
£45.10 ex.VAT
£55.00 Save 18%

Soakaway Crate (Heavy) Rainsmart 65T Assembled

Soakaway Crate (Heavy) Rainsmart 65T Assembled

Code: STM02D Size: 236 Litres Capacity Brand: Rainsmart

£49.20 ex.VAT
£60.00 Save 18%
£49.20 ex.VAT
£60.00 Save 18%

Soakaway Set (Heavy) Rainsmart 65T 1 Cubic Metre Flat-Packed

Soakaway Set (Heavy) Rainsmart 65T 1 Cubic Metre Flat-Packed

Code: STM02M3F Size: 943 Litres Brand: Rainsmart

£159.90 ex.VAT
£195.00 Save 18%
£159.90 ex.VAT
£195.00 Save 18%

Soakaway Set (Heavy) Rainsmart 65T 1 Cubic Metre Assembled

Soakaway Set (Heavy) Rainsmart 65T 1 Cubic Metre Assembled

Code: STM02M3 Size: 943 Litres Capacity Brand: Rainsmart

£176.30 ex.VAT
£215.00 Save 18%
£176.30 ex.VAT
£215.00 Save 18%

Soakaway Set 1 Cubic Metre For Heavier Soils

Soakaway Set 1 Cubic Metre For Heavier Soils

Code: 80001M3 Brand: Rainsmart

£221.40 ex.VAT
£270.00 Save 18%
£221.40 ex.VAT
£270.00 Save 18%

Soakaway Set 1 Cubic Metre For Heavier Soils Flat-Packed

Soakaway Set 1 Cubic Metre For Heavier Soils Flat-Packed

Code: 80001M3F Brand: Rainsmart

£205.00 ex.VAT
£250.00 Save 18%
£205.00 ex.VAT
£250.00 Save 18%

Shallow Soakaway Set 1 Cubic Metre for Heavier Soils Flat-Packed

Shallow Soakaway Set 1 Cubic Metre for Heavier Soils Flat-Packed

Code: 80001M3FSHALLOW Brand: Rainsmart

£245.18 ex.VAT
£299.00 Save 18%
£245.18 ex.VAT
£299.00 Save 18%

Nero Cell 30mm Drainage Cell (Single)

Nero Cell 30mm Drainage Cell (Single)

Code: 80001 Brand: Rainsmart

£3.69 ex.VAT
£4.50 Save 18%
£3.69 ex.VAT
£4.50 Save 18%

Nero Cell 30mm Drainage Cell (Pack of 8)

Nero Cell 30mm Drainage Cell (Pack of 8)

Code: 80001PK Brand: Rainsmart

£26.24 ex.VAT
£32.00 Save 18%
£26.24 ex.VAT
£32.00 Save 18%

Soakaway Set (Heavy) 0.8 Cubic Metres (Polystorm)

Soakaway Set (Heavy) 0.8 Cubic Metres (Polystorm)

From 7 reviews

Code: PSM1KIT Size: 800 Litres Brand: Polypipe

£155.23 ex.VAT
£189.30 Save 18%
£155.23 ex.VAT
£189.30 Save 18%
From 7 reviews

Soakaway Set 1 Cubic Metre (Aquavoid)

Soakaway Set 1 Cubic Metre (Aquavoid)

From 42 reviews

Code: AQUA1M3 Size: 950 Litres Capacity Brand: Aquavoid

£172.80 ex.VAT
£210.73 Save 18%
£172.80 ex.VAT
£210.73 Save 18%
From 42 reviews

Soakaway Set (Heavy) 1 Cubic Metre (Aquavoid)

Soakaway Set (Heavy) 1 Cubic Metre (Aquavoid)

From 2 reviews

Code: AQUA2M3 Size: 950 Litres Capacity Brand: Aquavoid

£186.39 ex.VAT
£227.30 Save 18%
£186.39 ex.VAT
£227.30 Save 18%
From 2 reviews

Aquavoid Water Crate 1m x 1m x 333mm

Aquavoid Water Crate 1m x 1m x 333mm

From 6 reviews

Code: AQUA1 Size: 333 Litres Capacity Brand: Aquavoid

£58.38 ex.VAT
£71.19 Save 18%
£58.38 ex.VAT
£71.19 Save 18%
From 6 reviews

Aquavoid Water Crate Heavy 1m x 1m x 333mm

Aquavoid Water Crate Heavy 1m x 1m x 333mm

Code: AQUA2 Size: 333 Litres Capacity Brand: Aquavoid

£77.26 ex.VAT
£94.22 Save 18%
£77.26 ex.VAT
£94.22 Save 18%

Aquavoid Soakaway Clip Lateral

Aquavoid Soakaway Clip Lateral

From 3 reviews

Code: AQUACLIPL Brand: Aquavoid

£0.28 ex.VAT
£0.34 Save 18%
£0.28 ex.VAT
£0.34 Save 18%
From 3 reviews

Aquavoid Soakaway Clip Vertical

Aquavoid Soakaway Clip Vertical

From 1 reviews

Code: AQUACLIPV Brand: Aquavoid

£0.28 ex.VAT
£0.34 Save 18%
£0.28 ex.VAT
£0.34 Save 18%
From 1 reviews

Installation & Maintenance

Building Your Soakaway - Key Points

Building Your Soakaway - Key Points

Once you have bought your soakaway set, the real fun starts. Its time to begin the installation. Take a look at what you need to consider.

Building Your 65 Tonne Heavy Soakaway Crate (Video)

Building Your 65 Tonne Heavy Soakaway Crate (Video)

Our Rainsmart 65T Heavy crates are available flat-packed for building on site. Watch our video to see how they go together.

Shallow Soakaway Crate Assembly Instructions

Shallow Soakaway Crate Assembly Instructions

Assembly instructions for your Rainsmart Ellipse Shallow Soakaway Crate. View information sheet and read installation guide.

65 Tonne Heavy Soakaway Crate Assembly Instructions

65 Tonne Heavy Soakaway Crate Assembly Instructions

Assembly instructions for your 65T Heavy Soakaway Crate System. Take a look and download PDF document.

Building Your Ellipse Soakaway Crate (Video)

Building Your Ellipse Soakaway Crate (Video)

Our Rainsmart crates are available flat-packed for easy assembly on site. Watch our video to find out just how easy they are to build.

Building Your Shallow Soakaway Crate (Video)

Building Your Shallow Soakaway Crate (Video)

Our Rainsmart crates come flat-packed for easy assembly on site. Watch our video to find out just how easy they are to build.

Connecting Your Soakaway Sets Together

Connecting Your Soakaway Sets Together

This short video from the PBSL Group explains how best to connect plastic soakaway crates together

Ellipse Soakaway Crate Assembly Instructions

Ellipse Soakaway Crate Assembly Instructions

Assembly instructions for your Rainsmart Ellipse Double Soakaway Crate. View information sheet and see installation guide.

Soakaway Sets – Clipping the Crates Together

Soakaway Sets – Clipping the Crates Together

This video demonstrates how and where to place the clips depending upon the layout that you choose for your Aquavoid soakaway.

Installing Plastic Soakaways

Installing Plastic Soakaways

Not quite sure how to correctly install a soakaway system? This article has you covered with everything you need to get set up.

Back to top

Our Partners

Clark-Drain
Everbuild
FloPlast
FreeFoam
Galeco
Hargreaves Foundry
House Martin
Kestrel
Storm
Tetra Flow